化学法处理高浓度电镀废水

:1004-7204(2004)01-0011-04,,,(,510030):,,PH/ORP:;PH/ORP;:X703.1:AChemicalMethodforTreatmentofHighConcentrationElectroplatingWastewaterLUXian2wei,WANGJin2quan,CHENGuang2qiao,ZHOUYong2yi(GuangdongCompleteMachineryEquipmentBureau,Guangzhou510030,China)Abstract:Chemicalmethodfortreatmentofhighconcentraationelectropiatingwastewaterissummarized.Itisclearthatchemicalmethodfortreatmentofhighconcentrationelectroplatingwastewateriseffective.Whatmat2tersisthecontrolofchemicalreactswithPH/ORPinstrument.Keywords:highconcentrationelectroplatingwastewater;PH/ORPcontrol;cyanide;nikel;chrome,,,,,,,,,:,,,,150m3/h,12m3/h,16m3/h,6m3/h,16m3/h;11/mgl-1/mgl-12064121.0(CN-)502380.5451800.524510.55200.5pH1.04.56922.11:,,,,,:2003-09-22:(1973-),,,:11200411,,,pH23,,,NaOH,PAM,,,pH,,,,,,,,,,2.22.2.1:,ClO-,,pH1112,:CN-+ClO-+H2OCNCl+2OH-(1)CNCl+2OH-CNO-+Cl-+H2O(2),CNO-N2CO2:2CNO-+3ClO-+H2O2CO2+N2+3Cl-+2OH-(3)2#,10.0m2.5m2.6m,55m3,4.5h;,2.0m2.0m2.6m,8m3,45min,2.2.2:(pH23),pH8,Cr(OH)3,:2H2Cr2O7+3H2SO4+6HSO3-2Cr2(SO4)3+3SO42-+8H2O(4)Cr2(SO4)3+6NaOH3Na2SO4+2Cr(OH)3(5)3#,10.0m1.5m2.6m,32m3,5h;,1.5m1.5m2.6m,5m3,50min,2.2.3:,,,4#,10.0m3.5m2.6m,77m3,5h;3.0m2.5m2.6m,16m3,60min,;4.2m3.2m3.5m,32m3,2m3/m2.h;3m2.2m3.5m,16m31,40m221200412.2.4:,pH8.5,,1#,10.0m3.5m2.6m,77m3,5h;,2.0m2.0m2.6m,12min,;,2.0m2.0m2.6m,12min,;,6.8m4.2m3.5m,75m3,1.5m3/m2h;,3.0m3.5m3.5m,28m3;1,40m233.1,PH/ORP,PH/ORPORP,ORP,,CN-Cr6+ORP,:,PH111,PHNaOH;,ORP1400mv,10%,,,PH28,ORP2650mv,,:,PH3PH2.53,ORP3(NaHSO3),ORP3220mv,,:,NaOHpH,PH49.5,,15min,PAM,,:,NaOHpH89,,,,DT,20ppm,,,,,,PH5,,pH6.58.53.2,,22716716717717718718pH4.46.261.76.651.27.111.37.171.88.032.06.81/(mgL-1)273.60.34331.70.17240.5-412.10.14206.5-368.2-/(mgL-1)58.90.22143.20.1250.60.11185.20.18238.00.1691.30.12/(mgL-1)84.20.08126.00.1089.4-45.80.04142.70.12180.9-/(mgL-1)31.80.1035.3-38.30.0736.0-35.4-29.50.08/(mgL-1)16.1-6.80.3417.40.1714.9-20.50.2816.90.28/(mgL-1)89.838.50109.251.3396.244.91115.548.1283.435.2986.625.66:CN-,-312004144.1,PH/ORP,PH/ORP,PH/ORP,,4.2,,,,,4.3,,316L,UPVC,4.4,,,,60,4.5,,,,,4.6,,,,4.7,,,,,,,:[1],.[J].,1998,20(1):5-6.[2],,,.ORP[J].,2003,19(5):20-22.(9)78,z,B7:,50s,()(80s),,(z/B=0.5),[4];(z/B=0),8:,,,,5(z/B=0.5),,(z/B=0),,(3),:[1]G.C.Sih.Impactresponseofaplanecrackinextension[J].Int.J.Solids&Structures,1972(8):977-993.[2],.[J].,1994,24(4):459-473.[3],.Hopkinson[J].,1995(2):16-21.[4],.[J].,1997,15(3):379-381.4120041